Enhanced static-dynamic pressure transducer suitable for use in gas turbines and other compressor applications
    1.
    发明授权
    Enhanced static-dynamic pressure transducer suitable for use in gas turbines and other compressor applications 有权
    适用于燃气轮机和其他压缩机应用的增强静态压力传感器

    公开(公告)号:US08074521B2

    公开(公告)日:2011-12-13

    申请号:US12614741

    申请日:2009-11-09

    IPC分类号: G01L13/02

    摘要: A filter assembly for use with a static-dynamic piezoresistive pressure transducer that measures low amplitude, dynamic pressure perturbations superimposed on top of a high static pressure through the implementation of a low-pass mechanical filter assembly is disclosed. The filter assembly may comprise a dual lumen reference tube and a removable filter subassembly further comprising a porous metal filter and narrow diameter tube. The transducer, which may be capable of operating at ultra-high temperatures and in harsh environments, may comprise of a static piezoresistive pressure sensor, which measures the large pressures on the order of 200 psi and greater, and an ultrasensitive, dynamic piezoresistive pressure sensor which may capture small, high frequency pressure oscillations on the order of a few psi or less. The filter assembly may transmit static pressure to the back of the dynamic pressure sensor to cancel out the static pressure present at the front of the sensor while keeping dynamic pressure from reaching the back of the sensor. In this manner, the filter assembly enables the transducer to accurately read dynamic pressure in the presence of high static pressure without rupturing the thin diaphragm of the dynamic pressure sensor.

    摘要翻译: 公开了一种与静态压阻式压力传感器一起使用的过滤器组件,其通过实施低通机械过滤器组件来测量叠加在高静态压力之上的低振幅动态压力扰动。 过滤器组件可以包括双腔参考管和可移除的过滤器子组件,其还包括多孔金属过滤器和窄直径管。 可以在超高温和恶劣环境下工作的换能器可以包括静压压力传感器,该压力传感器测量大约200psi和更大的压力,以及超灵敏的压阻压力传感器 这可以捕获小于或等于几psi的小的高频压力振荡。 过滤器组件可以将静压传递到动态压力传感器的背面,以抵消存在于传感器前部的静压力,同时保持动态压力不到达传感器的后部。 以这种方式,过滤器组件使得换能器能够在存在高静态压力的情况下准确地读取动态压力而不破坏动态压力传感器的薄膜。

    ENHANCED STATIC-DYNAMIC PRESSURE TRANSDUCER SUITABLE FOR USE IN GAS TURBINES AND OTHER COMPRESSOR APPLICATIONS
    2.
    发明申请
    ENHANCED STATIC-DYNAMIC PRESSURE TRANSDUCER SUITABLE FOR USE IN GAS TURBINES AND OTHER COMPRESSOR APPLICATIONS 失效
    适用于气体涡轮和其他压缩机应用的增强静态动态压力传感器

    公开(公告)号:US20120073377A1

    公开(公告)日:2012-03-29

    申请号:US13312381

    申请日:2011-12-06

    IPC分类号: G01L23/00

    摘要: A transducer comprising a filter assembly that measures low amplitude, dynamic pressure perturbations superimposed on top of a high static pressure through the implementation of a low-pass mechanical filter assembly. The filter assembly may comprise a dual lumen reference tube and a removable filter subassembly further comprising a porous metal filter and narrow diameter tube. The transducer, which may be capable of operating at ultra-high temperatures and in harsh environments, may comprise of a static piezoresistive pressure sensor, which measures the large pressures on the order of 200 psi and greater, and an ultrasensitive, dynamic piezoresistive pressure sensor which may capture small, high frequency pressure oscillations on the order of a few psi. The filter assembly may transmit static pressure to the back of the dynamic pressure sensor to cancel out the static pressure present at the front of the sensor while removing dynamic pressure.

    摘要翻译: 一种换能器,其包括通过实施低通机械过滤器组件来测量叠加在高静态压力之上的低振幅动态压力扰动的过滤器组件。 过滤器组件可以包括双腔参考管和可移除的过滤器子组件,其还包括多孔金属过滤器和窄直径管。 可以在超高温和恶劣环境下工作的换能器可以包括静压压力传感器,该压力传感器测量大约200psi和更大的压力,以及超灵敏的压阻压力传感器 这可以捕获几psi的数量级的小的高频压力振荡。 过滤器组件可以将静压传递到动态压力传感器的背面,以消除传感器前部存在的静压,同时消除动态压力。

    PRESSURE TRANSDUCER EMPLOYING A MICRO-FILTER AND EMULATING AN INFINITE TUBE PRESSURE TRANSDUCER
    3.
    发明申请
    PRESSURE TRANSDUCER EMPLOYING A MICRO-FILTER AND EMULATING AN INFINITE TUBE PRESSURE TRANSDUCER 有权
    使用微滤器的压力传感器和无级管压力传感器

    公开(公告)号:US20100175482A1

    公开(公告)日:2010-07-15

    申请号:US12719789

    申请日:2010-03-08

    IPC分类号: G01L9/06 H04R31/00

    摘要: It is an objective of the present invention to provide a pressure transducer assembly for measuring pressures in high temperature environments that employs an elongated tube which is terminated at one end by an acoustic micro-filter. The micro-filter has a plurality of apertures extending from one end to the other end, each aperture is of a small diameter as compared to the diameter of the transducer and the damper operates to absorb acoustic waves impinging on it with limited or no reflection. To improve the absorption of acoustic waves, the elongated tube may be tapered and/or mounted to a support block and further convoluted to reduce the overall size and mass of the device. A pressure transducer with a diaphragm flush may be mounted to the elongated tube and extend through to the inner wall of the tube. Hot gases propagate through the elongated tube and their corresponding pressures are measured by the transducer. The acoustic filter operates to absorb acoustic waves resultant from the hot gases, therefore enabling the pressure transducer to be mainly responsive to high frequency waves associated with the gas turbine operation.

    摘要翻译: 本发明的目的是提供一种用于测量在高温环境中的压力的​​压力传感器组件,该压力传感器组件采用在一端由声学微滤器端接的细长管。 微滤器具有从一端延伸到另一端的多个孔,与换能器的直径相比,每个孔具有小的直径,并且阻尼器用于吸收以有限的或不反射的方式撞击在其上的声波。 为了改善声波的吸收,细长管可以是锥形的和/或安装到支撑块上并进一步卷曲以减小装置的整体尺寸和质量。 具有隔膜齐平的压力传感器可以安装到细长管并延伸到管的内壁。 热气体通过细长管传播,其相应的压力由传感器测量。 声学滤波器用于吸收由热气体产生的声波,因此能够使压力传感器主要响应于与燃气轮机操作相关联的高频波。

    PRESSURE TRANSDUCER EMPLOYING A MICRO-FILTER AND EMULATING AN INFINITE TUBE PRESSURE TRANSDUCER
    4.
    发明申请
    PRESSURE TRANSDUCER EMPLOYING A MICRO-FILTER AND EMULATING AN INFINITE TUBE PRESSURE TRANSDUCER 有权
    使用微滤器的压力传感器和无级管压力传感器

    公开(公告)号:US20110296924A1

    公开(公告)日:2011-12-08

    申请号:US13161594

    申请日:2011-06-16

    IPC分类号: G01L11/04 G01R3/00

    摘要: A pressure transducer assembly for measuring pressures in high temperature environments employing an elongated tube which is terminated at one end by an acoustic micro-filter. The micro-filter is operative to absorb acoustic waves impinging on it with limited or no reflection. To improve the absorption of acoustic waves, the elongated tube may be tapered and/or mounted to a support block and further convoluted to reduce the overall size and mass of the device. A pressure transducer with a diaphragm flush may be mounted to the elongated tube and extend through to the inner wall of the tube. Hot gases propagate through the elongated tube and their corresponding pressures are measured by the transducer. The acoustic filter operates to absorb acoustic waves resultant from the hot gases, therefore enabling the pressure transducer to be mainly responsive to high frequency waves associated with the gas turbine operation.

    摘要翻译: 一种用于在高温环境中测量压力的压力传感器组件,其采用细长管,其在一端由声学微滤器终止。 微滤器可以有效或无反射地吸收入射到其上的声波。 为了改善声波的吸收,细长管可以是锥形的和/或安装到支撑块上并进一步卷曲以减小装置的整体尺寸和质量。 具有隔膜齐平的压力传感器可以安装到细长管并延伸到管的内壁。 热气体通过细长管传播,其相应的压力由传感器测量。 声学滤波器用于吸收由热气体产生的声波,因此能够使压力传感器主要响应于与燃气轮机操作相关联的高频波。

    Pressure transducer employing a micro-filter and emulating an infinite tube pressure transducer
    5.
    发明授权
    Pressure transducer employing a micro-filter and emulating an infinite tube pressure transducer 有权
    压力传感器采用微过滤器并模拟无限管压力传感器

    公开(公告)号:US07975552B2

    公开(公告)日:2011-07-12

    申请号:US12719789

    申请日:2010-03-08

    IPC分类号: G01L9/00

    摘要: It is an objective of the present invention to provide a pressure transducer assembly for measuring pressures in high temperature environments that employs an elongated tube which is terminated at one end by an acoustic micro-filter. The micro-filter has a plurality of apertures extending from one end to the other end, each aperture is of a small diameter as compared to the diameter of the transducer and the damper operates to absorb acoustic waves impinging on it with limited or no reflection. To improve the absorption of acoustic waves, the elongated tube may be tapered and/or mounted to a support block and further convoluted to reduce the overall size and mass of the device. A pressure transducer with a diaphragm flush may be mounted to the elongated tube and extend through to the inner wall of the tube. Hot gases propagate through the elongated tube and their corresponding pressures are measured by the transducer. The acoustic filter operates to absorb acoustic waves resultant from the hot gases, therefore enabling the pressure transducer to be mainly responsive to high frequency waves associated with the gas turbine operation.

    摘要翻译: 本发明的目的是提供一种用于测量在高温环境中的压力的​​压力传感器组件,该压力传感器组件采用在一端由声学微滤器端接的细长管。 微滤器具有从一端延伸到另一端的多个孔,与换能器的直径相比,每个孔具有小直径,并且阻尼器用于吸收以有限或无反射的方式撞击在其上的声波。 为了改善声波的吸收,细长管可以是锥形的和/或安装到支撑块上并进一步卷曲以减小装置的整体尺寸和质量。 具有隔膜齐平的压力传感器可以安装到细长管并延伸到管的内壁。 热气体通过细长管传播,其相应的压力由传感器测量。 声学滤波器用于吸收由热气体产生的声波,因此能够使压力传感器主要响应于与燃气轮机操作相关联的高频波。

    Pressure transducer employing a micro-filter and emulating an infinite tube pressure transducer
    6.
    发明授权
    Pressure transducer employing a micro-filter and emulating an infinite tube pressure transducer 有权
    压力传感器采用微过滤器并模拟无限管压力传感器

    公开(公告)号:US08240216B2

    公开(公告)日:2012-08-14

    申请号:US13161594

    申请日:2011-06-16

    IPC分类号: G01L9/00

    摘要: A pressure transducer assembly for measuring pressures in high temperature environments employing an elongated tube which is terminated at one end by an acoustic micro-filter. The micro-filter is operative to absorb acoustic waves impinging on it with limited or no reflection. To improve the absorption of acoustic waves, the elongated tube may be tapered and/or mounted to a support block and further convoluted to reduce the overall size and mass of the device. A pressure transducer with a diaphragm flush may be mounted to the elongated tube and extend through to the inner wall of the tube. Hot gases propagate through the elongated tube and their corresponding pressures are measured by the transducer. The acoustic filter operates to absorb acoustic waves resultant from the hot gases, therefore enabling the pressure transducer to be mainly responsive to high frequency waves associated with the gas turbine operation.

    摘要翻译: 一种用于在高温环境中测量压力的压力传感器组件,其采用细长管,其在一端由声学微滤器终止。 微滤器可以有效或无反射地吸收入射到其上的声波。 为了改善声波的吸收,细长管可以是锥形的和/或安装到支撑块上并进一步卷曲以减小装置的整体尺寸和质量。 具有隔膜齐平的压力传感器可以安装到细长管并延伸到管的内壁。 热气体通过细长管传播,其相应的压力由传感器测量。 声学滤波器用于吸收由热气体产生的声波,因此能够使压力传感器主要响应于与燃气轮机操作相关联的高频波。

    Enhanced static-dynamic pressure transducer suitable for use in gas turbines and other compressor applications
    7.
    发明授权
    Enhanced static-dynamic pressure transducer suitable for use in gas turbines and other compressor applications 失效
    适用于燃气轮机和其他压缩机应用的增强静态压力传感器

    公开(公告)号:US08613224B2

    公开(公告)日:2013-12-24

    申请号:US13312381

    申请日:2011-12-06

    IPC分类号: G01L13/02

    摘要: A transducer comprising a filter assembly that measures low amplitude, dynamic pressure perturbations superimposed on top of a high static pressure through the implementation of a low-pass mechanical filter assembly. The filter assembly may comprise a dual lumen reference tube and a removable filter subassembly further comprising a porous metal filter and narrow diameter tube. The transducer, which may be capable of operating at ultra-high temperatures and in harsh environments, may comprise of a static piezoresistive pressure sensor, which measures the large pressures on the order of 200 psi and greater, and an ultrasensitive, dynamic piezoresistive pressure sensor which may capture small, high frequency pressure oscillations on the order of a few psi. The filter assembly may transmit static pressure to the back of the dynamic pressure sensor to cancel out the static pressure present at the front of the sensor while removing dynamic pressure.

    摘要翻译: 一种换能器,其包括通过实施低通机械过滤器组件来测量叠加在高静态压力之上的低振幅动态压力扰动的过滤器组件。 过滤器组件可以包括双腔参考管和可移除的过滤器子组件,其还包括多孔金属过滤器和窄直径管。 可以在超高温和恶劣环境下工作的换能器可以包括静压压力传感器,该压力传感器测量大约200psi和更大的压力,以及超灵敏的压阻压力传感器 这可以捕获几psi的数量级的小的高频压力振荡。 过滤器组件可以将静压传递到动态压力传感器的背面,以消除传感器前部存在的静压,同时消除动态压力。

    Enhanced Static-Dynamic Pressure Transducer Suitable for Use in Gas Turbines and Other Compressor Applications
    8.
    发明申请
    Enhanced Static-Dynamic Pressure Transducer Suitable for Use in Gas Turbines and Other Compressor Applications 有权
    增强静态动态压力传感器适用于燃气轮机和其他压缩机应用

    公开(公告)号:US20110107840A1

    公开(公告)日:2011-05-12

    申请号:US12614741

    申请日:2009-11-09

    IPC分类号: G01L7/00

    摘要: A filter assembly for use with a static-dynamic piezoresistive pressure transducer that measures low amplitude, dynamic pressure perturbations superimposed on top of a high static pressure through the implementation of a low-pass mechanical filter assembly is disclosed. The filter assembly may comprise a dual lumen reference tube and a removable filter subassembly further comprising a porous metal filter and narrow diameter tube. The transducer, which may be capable of operating at ultra-high temperatures and in harsh environments, may comprise of a static piezoresistive pressure sensor, which measures the large pressures on the order of 200 psi and greater, and an ultrasensitive, dynamic piezoresistive pressure sensor which may capture small, high frequency pressure oscillations on the order of a few psi or less. The filter assembly may transmit static pressure to the back of the dynamic pressure sensor to cancel out the static pressure present at the front of the sensor while keeping dynamic pressure from reaching the back of the sensor. In this manner, the filter assembly enables the transducer to accurately read dynamic pressure in the presence of high static pressure without rupturing the thin diaphragm of the dynamic pressure sensor.

    摘要翻译: 公开了一种与静态压阻式压力传感器一起使用的过滤器组件,其通过实施低通机械过滤器组件来测量叠加在高静态压力之上的低振幅动态压力扰动。 过滤器组件可以包括双腔参考管和可移除的过滤器子组件,其还包括多孔金属过滤器和窄直径管。 可以在超高温和恶劣环境下工作的换能器可以包括静压压力传感器,该压力传感器测量大约200psi和更大的压力,以及超灵敏的压阻压力传感器 这可以捕获小于或等于几psi的小的高频压力振荡。 过滤器组件可以将静压力传递到动态压力传感器的背面以抵消存在于传感器前部的静压力,同时保持动态压力不到达传感器的后部。 以这种方式,过滤器组件使得换能器能够在存在高静态压力的情况下准确地读取动态压力而不破坏动态压力传感器的薄膜。

    Nanotube and graphene semiconductor structures with varying electrical properties
    9.
    发明授权
    Nanotube and graphene semiconductor structures with varying electrical properties 有权
    具有不同电性能的纳米管和石墨烯半导体结构

    公开(公告)号:US08044472B2

    公开(公告)日:2011-10-25

    申请号:US12692267

    申请日:2010-01-22

    IPC分类号: H01L29/84

    摘要: Nanotube and graphene transducers are disclosed. A transducer according to the present invention can include a substrate, a plurality of semiconductive structures, one or more metal pads, and a circuit. The semiconductive structures can be nanotubes or graphene located entirely on a surface of the substrate, such that each of the semiconductive structures is supported along its entire length by the substrate. An electrical property of the semiconductive structures can change when a force is applied to the substrate. The metal pads can secure at least one of the semiconductive structures to the substrate. The circuit can be coupled to at least some of the semiconductive structures to provide an output responsive to the change in the electrical property of the semiconductive structures, so as to indicate the applied force.

    摘要翻译: 公开了纳米管和石墨烯转换器。 根据本发明的换能器可以包括基板,多个半导体结构,一个或多个金属焊盘和电路。 半导体结构可以是完全位于衬底的表面上的纳米管或石墨烯,使得每个半导体结构沿其整个长度由衬底支撑。 当向衬底施加力时,半导体结构的电性能可以改变。 金属垫可以将至少一个半导体结构固定到基底上。 该电路可以耦合到半导体结构中的至少一些,以提供响应于半导体结构的电性能的变化的输出,以便指示施加的力。

    NANOTUBE AND GRAPHENE SEMICONDUCTOR STRUCTURES WITH VARYING ELECTRICAL PROPERTIES
    10.
    发明申请
    NANOTUBE AND GRAPHENE SEMICONDUCTOR STRUCTURES WITH VARYING ELECTRICAL PROPERTIES 有权
    具有不同电性能的纳米管和石墨半导体结构

    公开(公告)号:US20100140723A1

    公开(公告)日:2010-06-10

    申请号:US12692267

    申请日:2010-01-22

    IPC分类号: H01L29/84 H01L21/18

    摘要: Nanotube and graphene transducers are disclosed. A transducer according to the present invention can include a substrate, a plurality of semiconductive structures, one or more metal pads, and a circuit. The semiconductive structures can be nanotubes or graphene located entirely on a surface of the substrate, such that each of the semiconductive structures is supported along its entire length by the substrate. An electrical property of the semiconductive structures can change when a force is applied to the substrate. The metal pads can secure at least one of the semiconductive structures to the substrate. The circuit can be coupled to at least some of the semiconductive structures to provide an output responsive to the change in the electrical property of the semiconductive structures, so as to indicate the applied force.

    摘要翻译: 公开了纳米管和石墨烯转换器。 根据本发明的换能器可以包括基板,多个半导体结构,一个或多个金属焊盘和电路。 半导体结构可以是完全位于衬底的表面上的纳米管或石墨烯,使得每个半导体结构沿其整个长度由衬底支撑。 当向衬底施加力时,半导体结构的电性能可以改变。 金属垫可以将至少一个半导体结构固定到基底上。 该电路可以耦合到半导体结构中的至少一些,以提供响应于半导体结构的电性能的变化的输出,以便指示施加的力。